Ancient hand grenade from the Crusades

A centuries-old hand grenade that may date back to the time of the crusaders is among a host of treasures retrieved from the sea in Israel.

The metal artifacts, some of which are more than 3,500 years old, were found over a period of years by the late Marcel Mazliah, a worker at the Hadera power plant in northern Israel.

Mazliah’s family recently presented the treasures to the Israel Antiquities Authority. Experts, who were surprised by the haul, think that the objects probably fell overboard from a medieval metal merchant’s ship.

The hand grenade was a common weapon in Israel during the Crusader era, which began in the 11th century and lasted until the 13th century, according to the Israel Antiquities Authority. Grenades were also used 12th and 13th century Ayyubid period and the Mamluk era, which ran from the 13th to the 16th century, experts say.